JiangxiShichengMine Machinery Factory locates in Ganzhou City, Jiangxi Province, China where is rich of tungsten/wolframite, there are many tungsten processing plant here. We are the professional manufacturer of the processing equipment. If you are interested in it, pls contact us to: export3@jxscmining.com or export3@shaking-table.com.

Recovery of high pure products YTO, W-metal powders & other metal salts powders from waste WC-hard metal tool bits, drill bits, inserts etc. and heavy metal alloy scraps or swarf. The highlight of the developed process include: high metal recovery including tungsten metal; high product purity tailoring of product spec like density, size etc. through smart experimental design & generation of little effluents which are not toxic in nature and do not have any detrimental environmental effect. Process steps are simple and processing cost is very low in comparison to existing process know-hows.
For further details please visit:
http://www.nmlindia.org/download/Tech_HB/index.htmlContact:
Director or Head-BDM,
CSIR-National Metallurgical Laboratory, Jamshedpur-831007
INDIA
E-mail: director@nmlindia.org
Tel: +91-657-2345205

published:12 Nov 2015

views:2495

Tungsten plays a large and indispensable role in modern high-tech industry. Up to 500,000 tons of raw tungsten ore are mined each year by Wolfram Bergbau und Hütten AG (WHB)in Felbertal, Austria, which is the largest scheelite deposit in Europe.
More than 100,000 tons per year do not need to be processed and disposed as ﬁne tailings into settling ponds with limited capacity. The XRT-sorted waste rock can instead be sold as aggregates for road construction.

► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs
No new metals mine has been built in Britain for decades but an Australian company will soon be digging up tungsten. James Wilson reports on progress.
► FT Business: http://bit.ly/1KUK08s
► UK Business & Politics: http://bit.ly/1AXNyGS
► Australian MinerEvolution Buys Up Assets: http://bit.ly/1QG8o4H
Twitter https://twitter.com/ftvideo
Facebook https://www.facebook.com/financialtimes

Lunes 7 de abril de 2014,
TUNGSTEN -- AN OVERVIEW ON PROCESSING AND FUSION APPLICATIONS
Michael Rieth
Institute of Advance Materials, KIT, ALEMANIA
Tungsten is an extreme material. Of all metals it has, for example, the highest melting point, the lowest thermal expansion coefficient and the lowest vapour pressure. But tungsten has significant drawbacks which prevent its use for typical structural applications. With the advance of nuclear fusion technology the need for exceptional high heat flux components arose. And therefore, many generic designs of cooling components have been proposed which make extensive use of tungsten as armour, but also as structural material.
This presentation gives an overview of the basic properties of tungsten, its typical use, consumption and resources. Commercial production routes and processing techniques are discussed with the focus on material properties and application. It will be shown that tungsten cannot be easily used for cooling structures or other structural applications. Especially in a nuclear fusion environment, many different aspects become relevant at the same time. To illustrate some of the worst problems, different divertor designs are analysed and assessed. Finally, an outlook on alternative high heat flux applications is given.
Los Seminarios Internacionales de Fronteras de la Ciencia de Materiales son organizados por el Departamento de Ciencia de Materiales de la Universidad Politécnica de Madrid, y tienen periodicidad semanal. Su objetivo es servir de punto de encuentro, interacción y difusión de problemáticas actuales y destacadas dentro del área de la Ciencia e Ingeniería de Materiales; con una visión amplia que va desde los materiales biológicos a los materiales funcionales, pasando por aplicaciones puramente tecnológicas. En ellos se cuenta con la participación desinteresada de relevantes investigadores y tecnólogos de Universidades, Empresas y Centros de Investigación del ámbito nacional e internacional.
Coordinador: Jose Ygnacio Pastor - jypastor@mater.upm.es

published:03 Jun 2014

views:338

This is a video I shot and edited along with my friend, JaredRoll, as part of a how it's made series done for Basic Carbide in Lowber, PA.
Follow Jared on Twitter @Rollsenberg

YIBI Jewelry is a Reputable & Reliable Tungsten Jewelry Manufacturer for International Brands. We work with many designers from numerous International Brands and help them to make their designs into reality by providing the technical solution to achieve it. We are the expert in tungsten jewelry OEM & ODM services with our own jewelry manufacturing plants.
Learn more about YIBI Tungsten Jewelry Manufacturer: https://www.chinayibi.com/fashion-jewellery-suppliers/

published:22 Nov 2018

views:6

Carbide inserts are used to machine almost everything made of metal. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
We take you to the Sandvik Coromant's world class insert production facility at Gimo, Sweden to witness how an insert is made. See how it's done!
TranscriptAlmost everything made of metal is machined with an insert. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
A typical insert is made of 80% tungsten carbide and a metal matrix that binds the hard carbide grains together, where cobalt is the most common. It takes more than two days to produce an insert, so it’s a complicated process.
In the material warehouse, row after row of raw material are stacked. The tungsten carbide we use is either recycled, or comes from our own mine in Austria. Cobalt, titanium and all other ingredients come from carefully selected suppliers; each batch meticulously tested in the lab.
Some recipes contain very small amounts of selected ingredients that are added by hand. The main ingredients are then automatically dispensed at the different stops along the weigh line.
In the milling room the ingredients are milled to the required particle size together with ethanol, water and an organic binder. This process takes from eight to 55 hours, depending on the recipe.
The slurry is pumped into a spray drier where hot nitrogen gas is sprayed to evaporate the ethanol and water mixture. When the powder is dry, it consists of spherical granules of identical sizes. A sample is sent to the lab for quality check.
Barrels of 100 kilograms of ready-to-press powder arrive at the pressing machine. The binder added in the milling room is the binder that holds the powder together after pressing. Up to 12 tons of pressure are applied, depending on the type of insert. The binder added in the milling room is what holds the powder together after pressing. The process is completely automated. Each insert is weighed and at certain intervals controlled visually by the operator.
The pressed inserts are very fragile and need to be hardened in a sintering oven. This process takes about 13 hours at a temperature of approximately 1,500 degrees Celsius. The inserts are sintered into an extremely hard cemented-carbide product, almost as hard as diamond. The organic binder is incinerated and the insert shrinks approximately to half its original size. The excess heat is recycled and used to heat the premises in the winter, and cool them down during summer.
The inserts are ground, one by one, in different types of grinding machines to achieve the exact size, geometry and tolerances. As the cemented carbide insert is so hard, a disc with 150 million small industrial diamonds, is used to grind it. The excess carbide is recycled, as well as the oil that is used as cutting fluid.
The majority of inserts are coated, either through chemical vapour deposition (CVD) or physical vapour deposition (PVD). Here, we see a PVD-process.
The inserts are placed in fixtures...
…and put into the oven.
The thin layer of coating makes the insert both harder and tougher. This is also where the insert gets its specific colour.
Although the insert has been inspected at the lab regularly during the whole process, it’s manually examined again before it’s laser marked and packed.
After labelling, the grey boxes are ready to be sent out to manufacturers around the world.
When the inserts are worn out, they are returned to Sandvik Coromant for recycling, and the process of making a new insert begins.

Tungsten

Tungsten, also known as wolfram, is a chemical element with symbol W and atomic number 74. The word tungsten comes from the Swedish language tung sten, which directly translates to heavy stone. Its name in Swedish is volfram, however, in order to distinguish it from scheelite, which in Swedish is alternatively named tungsten.

A hard, rare metal under standard conditions when uncombined, tungsten is found naturally on Earth only in chemical compounds. It was identified as a new element in 1781, and first isolated as a metal in 1783. Its important ores include wolframite and scheelite. The free element is remarkable for its robustness, especially the fact that it has the highest melting point of all the elements. Its high density is 19.3 times that of water, comparable to that of uranium and gold, and much higher (about 1.7 times) than that of lead. Polycrystalline tungsten is an intrinsically brittle and hard material, making it difficult to work. However, pure single-crystalline tungsten is more ductile, and can be cut with a hard-steel hacksaw.

Tungsten (music)

A Tungsten or Tungs-Tone is a type of phonographstylus. They are constructed from tungsten wire, which is held in a metal shank. Unlike a steel stylus, a tungsten stylus has a cylindrical rather than a conical shape, meaning that the cross-section of the stylus remains the same as the stylus wears down, which in turn means that tungsten styluses may be used for several plays.

Typically, a new steel needle is required for every record played on an old acoustic phonograph. This is because the record contains abrasive material. In the first few silent tracks this abrasion hones the steel needle to a profile that tracks the grooves properly. The needle continues to wear as it plays the record, so that by the end its diameter has increased to the point where the sharp edges may damage the grooves on subsequent plays.

Palm Tungsten

Details

The Tungsten series was introduced in October 2002, created as a "prosumer" line priced at $199 to $300 to compete with the popular Sony Clie and Windows Mobile PDAs. The first device in the line was the Tungsten T, making it the first Palm PDA to be labeled with a letter rather than a number and to run Palm OS 5.

All models except the Tungsten C, W, and E have Bluetooth. The Tungsten C has Wi-Fi and it is optional on the E2, T3, and T5 via the Palm Wi-Fi Card placed in their SD card slot).

With the exception of the Tungsten W, all Tungsten PDAs run Palm OS 5 "Garnet" on an ARM processor and have non-user-replaceable lithium-ion batteries. Some users replace battery packs with third-party units. The T3, for example, is shipped with a 900 mAh capacity battery but third-party 1100 mAh or 1150 mAh LI-poly batteries of the same physical dimensions are available. Tungsten models use a five-way navigator pad, in the shape of a rounded rectangle, circle, or oval and have four buttons for built-in applications.

See also

Sandvik Coromant

Sandvik Coromant is a Swedish company that supplies cutting tools and services to the metal cutting industry.

Sandvik Coromant is headquartered in Sandviken, Sweden and is represented in more than 130 countries with some 8,000 employees worldwide. It is part of the business area of Sandvik Machining Solutions, which is within the global industrial group Sandvik. (In 2012, Sandvik was named #58 on Forbes’ “The World’s Most Innovative Companies” list.)

The company began as a small, production unit for cemented carbide tools in Sandviken, Sweden when Wilhelm Haglund was assigned the job as manager of the unit in 1942. However, new innovations and manufacturing methods led to the establishment of a more industrialized unit in Gimo, Sweden in 1951. Today, Sandvik Coromant is a global company with production facilities connected worldwide to three distribution centers in the US, Europe and Asia.

Standards and certifications

Sandvik Coromant has received certification for international standards such as the ISO 26623 standard for tool holding systems as well as the ISO inserts, around which an industry-leading recycling program was created, and the ISO 13399 standard for simplifying the exchange of data for cutting tools between different systems such as, CAD, CAM, CAE, and PDM/EDM.

tungsten processing plant

JiangxiShichengMine Machinery Factory locates in Ganzhou City, Jiangxi Province, China where is rich of tungsten/wolframite, there are many tungsten processing plant here. We are the professional manufacturer of the processing equipment. If you are interested in it, pls contact us to: export3@jxscmining.com or export3@shaking-table.com.

North American Tungsten

Tungsten from Scrap

Recovery of high pure products YTO, W-metal powders & other metal salts powders from waste WC-hard metal tool bits, drill bits, inserts etc. and heavy metal alloy scraps or swarf. The highlight of the developed process include: high metal recovery including tungsten metal; high product purity tailoring of product spec like density, size etc. through smart experimental design & generation of little effluents which are not toxic in nature and do not have any detrimental environmental effect. Process steps are simple and processing cost is very low in comparison to existing process know-hows.
For further details please visit:
http://www.nmlindia.org/download/Tech_HB/index.htmlContact:
Director or Head-BDM,
CSIR-National Metallurgical Laboratory, Jamshedpur-831007
INDIA
E-mail: director@nmlindia.org
Tel: +91-657-2345205

5:23

Tungsten Sorting at WOLFRAM Bergbau AG, Austria

Tungsten Sorting at WOLFRAM Bergbau AG, Austria

Tungsten Sorting at WOLFRAM Bergbau AG, Austria

Tungsten plays a large and indispensable role in modern high-tech industry. Up to 500,000 tons of raw tungsten ore are mined each year by Wolfram Bergbau und Hütten AG (WHB)in Felbertal, Austria, which is the largest scheelite deposit in Europe.
More than 100,000 tons per year do not need to be processed and disposed as ﬁne tailings into settling ponds with limited capacity. The XRT-sorted waste rock can instead be sold as aggregates for road construction.

Tungsten mining in the UK | FT Business

► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs
No new metals mine has been built in Britain for decades but an Australian company will soon be digging up tungsten. James Wilson reports on progress.
► FT Business: http://bit.ly/1KUK08s
► UK Business & Politics: http://bit.ly/1AXNyGS
► Australian MinerEvolution Buys Up Assets: http://bit.ly/1QG8o4H
Twitter https://twitter.com/ftvideo
Facebook https://www.facebook.com/financialtimes

Lunes 7 de abril de 2014,
TUNGSTEN -- AN OVERVIEW ON PROCESSING AND FUSION APPLICATIONS
Michael Rieth
Institute of Advance Materials, KIT, ALEMANIA
Tungsten is an extreme material. Of all metals it has, for example, the highest melting point, the lowest thermal expansion coefficient and the lowest vapour pressure. But tungsten has significant drawbacks which prevent its use for typical structural applications. With the advance of nuclear fusion technology the need for exceptional high heat flux components arose. And therefore, many generic designs of cooling components have been proposed which make extensive use of tungsten as armour, but also as structural material.
This presentation gives an overview of the basic properties of tungsten, its typical use, consumption and resources. Commercial production routes and processing techniques are discussed with the focus on material properties and application. It will be shown that tungsten cannot be easily used for cooling structures or other structural applications. Especially in a nuclear fusion environment, many different aspects become relevant at the same time. To illustrate some of the worst problems, different divertor designs are analysed and assessed. Finally, an outlook on alternative high heat flux applications is given.
Los Seminarios Internacionales de Fronteras de la Ciencia de Materiales son organizados por el Departamento de Ciencia de Materiales de la Universidad Politécnica de Madrid, y tienen periodicidad semanal. Su objetivo es servir de punto de encuentro, interacción y difusión de problemáticas actuales y destacadas dentro del área de la Ciencia e Ingeniería de Materiales; con una visión amplia que va desde los materiales biológicos a los materiales funcionales, pasando por aplicaciones puramente tecnológicas. En ellos se cuenta con la participación desinteresada de relevantes investigadores y tecnólogos de Universidades, Empresas y Centros de Investigación del ámbito nacional e internacional.
Coordinador: Jose Ygnacio Pastor - jypastor@mater.upm.es

3:19

Basic Carbide - How it's Made

Basic Carbide - How it's Made

Basic Carbide - How it's Made

This is a video I shot and edited along with my friend, JaredRoll, as part of a how it's made series done for Basic Carbide in Lowber, PA.
Follow Jared on Twitter @Rollsenberg

Tungsten Jewelry Manufacturer Tungsten Rings Processing technology

YIBI Jewelry is a Reputable & Reliable Tungsten Jewelry Manufacturer for International Brands. We work with many designers from numerous International Brands and help them to make their designs into reality by providing the technical solution to achieve it. We are the expert in tungsten jewelry OEM & ODM services with our own jewelry manufacturing plants.
Learn more about YIBI Tungsten Jewelry Manufacturer: https://www.chinayibi.com/fashion-jewellery-suppliers/

6:21

How carbide inserts are made by Sandvik Coromant

How carbide inserts are made by Sandvik Coromant

How carbide inserts are made by Sandvik Coromant

Carbide inserts are used to machine almost everything made of metal. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
We take you to the Sandvik Coromant's world class insert production facility at Gimo, Sweden to witness how an insert is made. See how it's done!
TranscriptAlmost everything made of metal is machined with an insert. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
A typical insert is made of 80% tungsten carbide and a metal matrix that binds the hard carbide grains together, where cobalt is the most common. It takes more than two days to produce an insert, so it’s a complicated process.
In the material warehouse, row after row of raw material are stacked. The tungsten carbide we use is either recycled, or comes from our own mine in Austria. Cobalt, titanium and all other ingredients come from carefully selected suppliers; each batch meticulously tested in the lab.
Some recipes contain very small amounts of selected ingredients that are added by hand. The main ingredients are then automatically dispensed at the different stops along the weigh line.
In the milling room the ingredients are milled to the required particle size together with ethanol, water and an organic binder. This process takes from eight to 55 hours, depending on the recipe.
The slurry is pumped into a spray drier where hot nitrogen gas is sprayed to evaporate the ethanol and water mixture. When the powder is dry, it consists of spherical granules of identical sizes. A sample is sent to the lab for quality check.
Barrels of 100 kilograms of ready-to-press powder arrive at the pressing machine. The binder added in the milling room is the binder that holds the powder together after pressing. Up to 12 tons of pressure are applied, depending on the type of insert. The binder added in the milling room is what holds the powder together after pressing. The process is completely automated. Each insert is weighed and at certain intervals controlled visually by the operator.
The pressed inserts are very fragile and need to be hardened in a sintering oven. This process takes about 13 hours at a temperature of approximately 1,500 degrees Celsius. The inserts are sintered into an extremely hard cemented-carbide product, almost as hard as diamond. The organic binder is incinerated and the insert shrinks approximately to half its original size. The excess heat is recycled and used to heat the premises in the winter, and cool them down during summer.
The inserts are ground, one by one, in different types of grinding machines to achieve the exact size, geometry and tolerances. As the cemented carbide insert is so hard, a disc with 150 million small industrial diamonds, is used to grind it. The excess carbide is recycled, as well as the oil that is used as cutting fluid.
The majority of inserts are coated, either through chemical vapour deposition (CVD) or physical vapour deposition (PVD). Here, we see a PVD-process.
The inserts are placed in fixtures...
…and put into the oven.
The thin layer of coating makes the insert both harder and tougher. This is also where the insert gets its specific colour.
Although the insert has been inspected at the lab regularly during the whole process, it’s manually examined again before it’s laser marked and packed.
After labelling, the grey boxes are ready to be sent out to manufacturers around the world.
When the inserts are worn out, they are returned to Sandvik Coromant for recycling, and the process of making a new insert begins.

tungsten processing plant

JiangxiShichengMine Machinery Factory locates in Ganzhou City, Jiangxi Province, China where is rich of tungsten/wolframite, there are many tungsten processing plant here. We are the professional manufacturer of the processing equipment. If you are interested in it, pls contact us to: export3@jxscmining.com or export3@shaking-table.com.

published: 04 Nov 2014

North American Tungsten

Tungsten from Scrap

Recovery of high pure products YTO, W-metal powders & other metal salts powders from waste WC-hard metal tool bits, drill bits, inserts etc. and heavy metal alloy scraps or swarf. The highlight of the developed process include: high metal recovery including tungsten metal; high product purity tailoring of product spec like density, size etc. through smart experimental design & generation of little effluents which are not toxic in nature and do not have any detrimental environmental effect. Process steps are simple and processing cost is very low in comparison to existing process know-hows.
For further details please visit:
http://www.nmlindia.org/download/Tech_HB/index.htmlContact:
Director or Head-BDM,
CSIR-National Metallurgical Laboratory, Jamshedpur-831007
INDIA
E-mail: director@...

published: 12 Nov 2015

Tungsten Sorting at WOLFRAM Bergbau AG, Austria

Tungsten plays a large and indispensable role in modern high-tech industry. Up to 500,000 tons of raw tungsten ore are mined each year by Wolfram Bergbau und Hütten AG (WHB)in Felbertal, Austria, which is the largest scheelite deposit in Europe.
More than 100,000 tons per year do not need to be processed and disposed as ﬁne tailings into settling ponds with limited capacity. The XRT-sorted waste rock can instead be sold as aggregates for road construction.

Tungsten & Molybdenum Processing Plant in 3D view

Tungsten mining in the UK | FT Business

► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs
No new metals mine has been built in Britain for decades but an Australian company will soon be digging up tungsten. James Wilson reports on progress.
► FT Business: http://bit.ly/1KUK08s
► UK Business & Politics: http://bit.ly/1AXNyGS
► Australian MinerEvolution Buys Up Assets: http://bit.ly/1QG8o4H
Twitter https://twitter.com/ftvideo
Facebook https://www.facebook.com/financialtimes

Lunes 7 de abril de 2014,
TUNGSTEN -- AN OVERVIEW ON PROCESSING AND FUSION APPLICATIONS
Michael Rieth
Institute of Advance Materials, KIT, ALEMANIA
Tungsten is an extreme material. Of all metals it has, for example, the highest melting point, the lowest thermal expansion coefficient and the lowest vapour pressure. But tungsten has significant drawbacks which prevent its use for typical structural applications. With the advance of nuclear fusion technology the need for exceptional high heat flux components arose. And therefore, many generic designs of cooling components have been proposed which make extensive use of tungsten as armour, but also as structural material.
This presentation gives an overview of the basic properties of tungsten, its typical use, consumption and resou...

published: 03 Jun 2014

Basic Carbide - How it's Made

This is a video I shot and edited along with my friend, JaredRoll, as part of a how it's made series done for Basic Carbide in Lowber, PA.
Follow Jared on Twitter @Rollsenberg

Tungsten Jewelry Manufacturer Tungsten Rings Processing technology

YIBI Jewelry is a Reputable & Reliable Tungsten Jewelry Manufacturer for International Brands. We work with many designers from numerous International Brands and help them to make their designs into reality by providing the technical solution to achieve it. We are the expert in tungsten jewelry OEM & ODM services with our own jewelry manufacturing plants.
Learn more about YIBI Tungsten Jewelry Manufacturer: https://www.chinayibi.com/fashion-jewellery-suppliers/

published: 22 Nov 2018

How carbide inserts are made by Sandvik Coromant

Carbide inserts are used to machine almost everything made of metal. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
We take you to the Sandvik Coromant's world class insert production facility at Gimo, Sweden to witness how an insert is made. See how it's done!
TranscriptAlmost everything made of metal is machined with an insert. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
A typical insert is made of 80% tungsten carbide and a metal matrix that binds the hard carbide grains together, where cobalt is the most common. It takes more than two days to produce an insert, so it’s a complicated process.
In the material warehouse, row after row of raw material a...

JiangxiShichengMine Machinery Factory locates in Ganzhou City, Jiangxi Province, China where is rich of tungsten/wolframite, there are many tungsten processing plant here. We are the professional manufacturer of the processing equipment. If you are interested in it, pls contact us to: export3@jxscmining.com or export3@shaking-table.com.

JiangxiShichengMine Machinery Factory locates in Ganzhou City, Jiangxi Province, China where is rich of tungsten/wolframite, there are many tungsten processing plant here. We are the professional manufacturer of the processing equipment. If you are interested in it, pls contact us to: export3@jxscmining.com or export3@shaking-table.com.

Tungsten Sorting at WOLFRAM Bergbau AG, Austria

Tungsten plays a large and indispensable role in modern high-tech industry. Up to 500,000 tons of raw tungsten ore are mined each year by Wolfram Bergbau und Hü...

Tungsten plays a large and indispensable role in modern high-tech industry. Up to 500,000 tons of raw tungsten ore are mined each year by Wolfram Bergbau und Hütten AG (WHB)in Felbertal, Austria, which is the largest scheelite deposit in Europe.
More than 100,000 tons per year do not need to be processed and disposed as ﬁne tailings into settling ponds with limited capacity. The XRT-sorted waste rock can instead be sold as aggregates for road construction.

Tungsten plays a large and indispensable role in modern high-tech industry. Up to 500,000 tons of raw tungsten ore are mined each year by Wolfram Bergbau und Hütten AG (WHB)in Felbertal, Austria, which is the largest scheelite deposit in Europe.
More than 100,000 tons per year do not need to be processed and disposed as ﬁne tailings into settling ponds with limited capacity. The XRT-sorted waste rock can instead be sold as aggregates for road construction.

► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs
No new metals mine has been built in Britain for decades but an Australian company will soon be digging up tungsten. James Wilson reports on progress.
► FT Business: http://bit.ly/1KUK08s
► UK Business & Politics: http://bit.ly/1AXNyGS
► Australian MinerEvolution Buys Up Assets: http://bit.ly/1QG8o4H
Twitter https://twitter.com/ftvideo
Facebook https://www.facebook.com/financialtimes

► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs
No new metals mine has been built in Britain for decades but an Australian company will soon be digging up tungsten. James Wilson reports on progress.
► FT Business: http://bit.ly/1KUK08s
► UK Business & Politics: http://bit.ly/1AXNyGS
► Australian MinerEvolution Buys Up Assets: http://bit.ly/1QG8o4H
Twitter https://twitter.com/ftvideo
Facebook https://www.facebook.com/financialtimes

Lunes 7 de abril de 2014,
TUNGSTEN -- AN OVERVIEW ON PROCESSING AND FUSION APPLICATIONS
Michael Rieth
Institute of Advance Materials, KIT, ALEMANIA
Tungsten is an extreme material. Of all metals it has, for example, the highest melting point, the lowest thermal expansion coefficient and the lowest vapour pressure. But tungsten has significant drawbacks which prevent its use for typical structural applications. With the advance of nuclear fusion technology the need for exceptional high heat flux components arose. And therefore, many generic designs of cooling components have been proposed which make extensive use of tungsten as armour, but also as structural material.
This presentation gives an overview of the basic properties of tungsten, its typical use, consumption and resources. Commercial production routes and processing techniques are discussed with the focus on material properties and application. It will be shown that tungsten cannot be easily used for cooling structures or other structural applications. Especially in a nuclear fusion environment, many different aspects become relevant at the same time. To illustrate some of the worst problems, different divertor designs are analysed and assessed. Finally, an outlook on alternative high heat flux applications is given.
Los Seminarios Internacionales de Fronteras de la Ciencia de Materiales son organizados por el Departamento de Ciencia de Materiales de la Universidad Politécnica de Madrid, y tienen periodicidad semanal. Su objetivo es servir de punto de encuentro, interacción y difusión de problemáticas actuales y destacadas dentro del área de la Ciencia e Ingeniería de Materiales; con una visión amplia que va desde los materiales biológicos a los materiales funcionales, pasando por aplicaciones puramente tecnológicas. En ellos se cuenta con la participación desinteresada de relevantes investigadores y tecnólogos de Universidades, Empresas y Centros de Investigación del ámbito nacional e internacional.
Coordinador: Jose Ygnacio Pastor - jypastor@mater.upm.es

Lunes 7 de abril de 2014,
TUNGSTEN -- AN OVERVIEW ON PROCESSING AND FUSION APPLICATIONS
Michael Rieth
Institute of Advance Materials, KIT, ALEMANIA
Tungsten is an extreme material. Of all metals it has, for example, the highest melting point, the lowest thermal expansion coefficient and the lowest vapour pressure. But tungsten has significant drawbacks which prevent its use for typical structural applications. With the advance of nuclear fusion technology the need for exceptional high heat flux components arose. And therefore, many generic designs of cooling components have been proposed which make extensive use of tungsten as armour, but also as structural material.
This presentation gives an overview of the basic properties of tungsten, its typical use, consumption and resources. Commercial production routes and processing techniques are discussed with the focus on material properties and application. It will be shown that tungsten cannot be easily used for cooling structures or other structural applications. Especially in a nuclear fusion environment, many different aspects become relevant at the same time. To illustrate some of the worst problems, different divertor designs are analysed and assessed. Finally, an outlook on alternative high heat flux applications is given.
Los Seminarios Internacionales de Fronteras de la Ciencia de Materiales son organizados por el Departamento de Ciencia de Materiales de la Universidad Politécnica de Madrid, y tienen periodicidad semanal. Su objetivo es servir de punto de encuentro, interacción y difusión de problemáticas actuales y destacadas dentro del área de la Ciencia e Ingeniería de Materiales; con una visión amplia que va desde los materiales biológicos a los materiales funcionales, pasando por aplicaciones puramente tecnológicas. En ellos se cuenta con la participación desinteresada de relevantes investigadores y tecnólogos de Universidades, Empresas y Centros de Investigación del ámbito nacional e internacional.
Coordinador: Jose Ygnacio Pastor - jypastor@mater.upm.es

Tungsten Jewelry Manufacturer Tungsten Rings Processing technology

YIBI Jewelry is a Reputable & Reliable Tungsten Jewelry Manufacturer for International Brands. We work with many designers from numerous International Brands an...

YIBI Jewelry is a Reputable & Reliable Tungsten Jewelry Manufacturer for International Brands. We work with many designers from numerous International Brands and help them to make their designs into reality by providing the technical solution to achieve it. We are the expert in tungsten jewelry OEM & ODM services with our own jewelry manufacturing plants.
Learn more about YIBI Tungsten Jewelry Manufacturer: https://www.chinayibi.com/fashion-jewellery-suppliers/

YIBI Jewelry is a Reputable & Reliable Tungsten Jewelry Manufacturer for International Brands. We work with many designers from numerous International Brands and help them to make their designs into reality by providing the technical solution to achieve it. We are the expert in tungsten jewelry OEM & ODM services with our own jewelry manufacturing plants.
Learn more about YIBI Tungsten Jewelry Manufacturer: https://www.chinayibi.com/fashion-jewellery-suppliers/

How carbide inserts are made by Sandvik Coromant

Carbide inserts are used to machine almost everything made of metal. The insert has to withstand extreme heat and force, so it’s made of some of the hardest ma...

Carbide inserts are used to machine almost everything made of metal. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
We take you to the Sandvik Coromant's world class insert production facility at Gimo, Sweden to witness how an insert is made. See how it's done!
TranscriptAlmost everything made of metal is machined with an insert. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
A typical insert is made of 80% tungsten carbide and a metal matrix that binds the hard carbide grains together, where cobalt is the most common. It takes more than two days to produce an insert, so it’s a complicated process.
In the material warehouse, row after row of raw material are stacked. The tungsten carbide we use is either recycled, or comes from our own mine in Austria. Cobalt, titanium and all other ingredients come from carefully selected suppliers; each batch meticulously tested in the lab.
Some recipes contain very small amounts of selected ingredients that are added by hand. The main ingredients are then automatically dispensed at the different stops along the weigh line.
In the milling room the ingredients are milled to the required particle size together with ethanol, water and an organic binder. This process takes from eight to 55 hours, depending on the recipe.
The slurry is pumped into a spray drier where hot nitrogen gas is sprayed to evaporate the ethanol and water mixture. When the powder is dry, it consists of spherical granules of identical sizes. A sample is sent to the lab for quality check.
Barrels of 100 kilograms of ready-to-press powder arrive at the pressing machine. The binder added in the milling room is the binder that holds the powder together after pressing. Up to 12 tons of pressure are applied, depending on the type of insert. The binder added in the milling room is what holds the powder together after pressing. The process is completely automated. Each insert is weighed and at certain intervals controlled visually by the operator.
The pressed inserts are very fragile and need to be hardened in a sintering oven. This process takes about 13 hours at a temperature of approximately 1,500 degrees Celsius. The inserts are sintered into an extremely hard cemented-carbide product, almost as hard as diamond. The organic binder is incinerated and the insert shrinks approximately to half its original size. The excess heat is recycled and used to heat the premises in the winter, and cool them down during summer.
The inserts are ground, one by one, in different types of grinding machines to achieve the exact size, geometry and tolerances. As the cemented carbide insert is so hard, a disc with 150 million small industrial diamonds, is used to grind it. The excess carbide is recycled, as well as the oil that is used as cutting fluid.
The majority of inserts are coated, either through chemical vapour deposition (CVD) or physical vapour deposition (PVD). Here, we see a PVD-process.
The inserts are placed in fixtures...
…and put into the oven.
The thin layer of coating makes the insert both harder and tougher. This is also where the insert gets its specific colour.
Although the insert has been inspected at the lab regularly during the whole process, it’s manually examined again before it’s laser marked and packed.
After labelling, the grey boxes are ready to be sent out to manufacturers around the world.
When the inserts are worn out, they are returned to Sandvik Coromant for recycling, and the process of making a new insert begins.

Carbide inserts are used to machine almost everything made of metal. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
We take you to the Sandvik Coromant's world class insert production facility at Gimo, Sweden to witness how an insert is made. See how it's done!
TranscriptAlmost everything made of metal is machined with an insert. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
A typical insert is made of 80% tungsten carbide and a metal matrix that binds the hard carbide grains together, where cobalt is the most common. It takes more than two days to produce an insert, so it’s a complicated process.
In the material warehouse, row after row of raw material are stacked. The tungsten carbide we use is either recycled, or comes from our own mine in Austria. Cobalt, titanium and all other ingredients come from carefully selected suppliers; each batch meticulously tested in the lab.
Some recipes contain very small amounts of selected ingredients that are added by hand. The main ingredients are then automatically dispensed at the different stops along the weigh line.
In the milling room the ingredients are milled to the required particle size together with ethanol, water and an organic binder. This process takes from eight to 55 hours, depending on the recipe.
The slurry is pumped into a spray drier where hot nitrogen gas is sprayed to evaporate the ethanol and water mixture. When the powder is dry, it consists of spherical granules of identical sizes. A sample is sent to the lab for quality check.
Barrels of 100 kilograms of ready-to-press powder arrive at the pressing machine. The binder added in the milling room is the binder that holds the powder together after pressing. Up to 12 tons of pressure are applied, depending on the type of insert. The binder added in the milling room is what holds the powder together after pressing. The process is completely automated. Each insert is weighed and at certain intervals controlled visually by the operator.
The pressed inserts are very fragile and need to be hardened in a sintering oven. This process takes about 13 hours at a temperature of approximately 1,500 degrees Celsius. The inserts are sintered into an extremely hard cemented-carbide product, almost as hard as diamond. The organic binder is incinerated and the insert shrinks approximately to half its original size. The excess heat is recycled and used to heat the premises in the winter, and cool them down during summer.
The inserts are ground, one by one, in different types of grinding machines to achieve the exact size, geometry and tolerances. As the cemented carbide insert is so hard, a disc with 150 million small industrial diamonds, is used to grind it. The excess carbide is recycled, as well as the oil that is used as cutting fluid.
The majority of inserts are coated, either through chemical vapour deposition (CVD) or physical vapour deposition (PVD). Here, we see a PVD-process.
The inserts are placed in fixtures...
…and put into the oven.
The thin layer of coating makes the insert both harder and tougher. This is also where the insert gets its specific colour.
Although the insert has been inspected at the lab regularly during the whole process, it’s manually examined again before it’s laser marked and packed.
After labelling, the grey boxes are ready to be sent out to manufacturers around the world.
When the inserts are worn out, they are returned to Sandvik Coromant for recycling, and the process of making a new insert begins.

tungsten processing plant

JiangxiShichengMine Machinery Factory locates in Ganzhou City, Jiangxi Province, China where is rich of tungsten/wolframite, there are many tungsten processing plant here. We are the professional manufacturer of the processing equipment. If you are interested in it, pls contact us to: export3@jxscmining.com or export3@shaking-table.com.

Tungsten Sorting at WOLFRAM Bergbau AG, Austria

Tungsten plays a large and indispensable role in modern high-tech industry. Up to 500,000 tons of raw tungsten ore are mined each year by Wolfram Bergbau und Hütten AG (WHB)in Felbertal, Austria, which is the largest scheelite deposit in Europe.
More than 100,000 tons per year do not need to be processed and disposed as ﬁne tailings into settling ponds with limited capacity. The XRT-sorted waste rock can instead be sold as aggregates for road construction.

Tungsten mining in the UK | FT Business

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No new metals mine has been built in Britain for decades but an Australian company will soon be digging up tungsten. James Wilson reports on progress.
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Lunes 7 de abril de 2014,
TUNGSTEN -- AN OVERVIEW ON PROCESSING AND FUSION APPLICATIONS
Michael Rieth
Institute of Advance Materials, KIT, ALEMANIA
Tungsten is an extreme material. Of all metals it has, for example, the highest melting point, the lowest thermal expansion coefficient and the lowest vapour pressure. But tungsten has significant drawbacks which prevent its use for typical structural applications. With the advance of nuclear fusion technology the need for exceptional high heat flux components arose. And therefore, many generic designs of cooling components have been proposed which make extensive use of tungsten as armour, but also as structural material.
This presentation gives an overview of the basic properties of tungsten, its typical use, consumption and resources. Commercial production routes and processing techniques are discussed with the focus on material properties and application. It will be shown that tungsten cannot be easily used for cooling structures or other structural applications. Especially in a nuclear fusion environment, many different aspects become relevant at the same time. To illustrate some of the worst problems, different divertor designs are analysed and assessed. Finally, an outlook on alternative high heat flux applications is given.
Los Seminarios Internacionales de Fronteras de la Ciencia de Materiales son organizados por el Departamento de Ciencia de Materiales de la Universidad Politécnica de Madrid, y tienen periodicidad semanal. Su objetivo es servir de punto de encuentro, interacción y difusión de problemáticas actuales y destacadas dentro del área de la Ciencia e Ingeniería de Materiales; con una visión amplia que va desde los materiales biológicos a los materiales funcionales, pasando por aplicaciones puramente tecnológicas. En ellos se cuenta con la participación desinteresada de relevantes investigadores y tecnólogos de Universidades, Empresas y Centros de Investigación del ámbito nacional e internacional.
Coordinador: Jose Ygnacio Pastor - jypastor@mater.upm.es

Tungsten Jewelry Manufacturer Tungsten Rings Processing technology

YIBI Jewelry is a Reputable & Reliable Tungsten Jewelry Manufacturer for International Brands. We work with many designers from numerous International Brands and help them to make their designs into reality by providing the technical solution to achieve it. We are the expert in tungsten jewelry OEM & ODM services with our own jewelry manufacturing plants.
Learn more about YIBI Tungsten Jewelry Manufacturer: https://www.chinayibi.com/fashion-jewellery-suppliers/

How carbide inserts are made by Sandvik Coromant

Carbide inserts are used to machine almost everything made of metal. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
We take you to the Sandvik Coromant's world class insert production facility at Gimo, Sweden to witness how an insert is made. See how it's done!
TranscriptAlmost everything made of metal is machined with an insert. The insert has to withstand extreme heat and force, so it’s made of some of the hardest material in the world.
A typical insert is made of 80% tungsten carbide and a metal matrix that binds the hard carbide grains together, where cobalt is the most common. It takes more than two days to produce an insert, so it’s a complicated process.
In the material warehouse, row after row of raw material are stacked. The tungsten carbide we use is either recycled, or comes from our own mine in Austria. Cobalt, titanium and all other ingredients come from carefully selected suppliers; each batch meticulously tested in the lab.
Some recipes contain very small amounts of selected ingredients that are added by hand. The main ingredients are then automatically dispensed at the different stops along the weigh line.
In the milling room the ingredients are milled to the required particle size together with ethanol, water and an organic binder. This process takes from eight to 55 hours, depending on the recipe.
The slurry is pumped into a spray drier where hot nitrogen gas is sprayed to evaporate the ethanol and water mixture. When the powder is dry, it consists of spherical granules of identical sizes. A sample is sent to the lab for quality check.
Barrels of 100 kilograms of ready-to-press powder arrive at the pressing machine. The binder added in the milling room is the binder that holds the powder together after pressing. Up to 12 tons of pressure are applied, depending on the type of insert. The binder added in the milling room is what holds the powder together after pressing. The process is completely automated. Each insert is weighed and at certain intervals controlled visually by the operator.
The pressed inserts are very fragile and need to be hardened in a sintering oven. This process takes about 13 hours at a temperature of approximately 1,500 degrees Celsius. The inserts are sintered into an extremely hard cemented-carbide product, almost as hard as diamond. The organic binder is incinerated and the insert shrinks approximately to half its original size. The excess heat is recycled and used to heat the premises in the winter, and cool them down during summer.
The inserts are ground, one by one, in different types of grinding machines to achieve the exact size, geometry and tolerances. As the cemented carbide insert is so hard, a disc with 150 million small industrial diamonds, is used to grind it. The excess carbide is recycled, as well as the oil that is used as cutting fluid.
The majority of inserts are coated, either through chemical vapour deposition (CVD) or physical vapour deposition (PVD). Here, we see a PVD-process.
The inserts are placed in fixtures...
…and put into the oven.
The thin layer of coating makes the insert both harder and tougher. This is also where the insert gets its specific colour.
Although the insert has been inspected at the lab regularly during the whole process, it’s manually examined again before it’s laser marked and packed.
After labelling, the grey boxes are ready to be sent out to manufacturers around the world.
When the inserts are worn out, they are returned to Sandvik Coromant for recycling, and the process of making a new insert begins.

Tungsten

Tungsten, also known as wolfram, is a chemical element with symbol W and atomic number 74. The word tungsten comes from the Swedish language tung sten, which directly translates to heavy stone. Its name in Swedish is volfram, however, in order to distinguish it from scheelite, which in Swedish is alternatively named tungsten.

A hard, rare metal under standard conditions when uncombined, tungsten is found naturally on Earth only in chemical compounds. It was identified as a new element in 1781, and first isolated as a metal in 1783. Its important ores include wolframite and scheelite. The free element is remarkable for its robustness, especially the fact that it has the highest melting point of all the elements. Its high density is 19.3 times that of water, comparable to that of uranium and gold, and much higher (about 1.7 times) than that of lead. Polycrystalline tungsten is an intrinsically brittle and hard material, making it difficult to work. However, pure single-crystalline tungsten is more ductile, and can be cut with a hard-steel hacksaw.